Something I had forgotten when you told me about using fiberglass the first time is that G10 IS laminated fiberglass. So you're using fiberglass either way.
(I thought that might be worth mentioning in case OP or someone else that found this wasn't familiar with G10)

I wondered how you applied the fiberglass to the scales without it wrinkling up on you. Laying the sheet over the scales must save you a lot of trouble.